20–30 Qs: general aptitude (~30–50%) + C programming (nested loops, recursion, pointers)
Out loud, in order: clarify, build it, check it, explain it.
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Data engineering interview · Big Tech & Enterprise Software
A general SWE-style loop: two written tests (aptitude + C), a build-an-application coding round, then technical + HR.
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And what its data engineers work with.
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Stages in the order candidates meet them.
5 stages. 3 rounds have reported questions, described below.
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The topics it covers and the questions candidates reported.
1 reported question. See them below
2 reported questions. See them below
1 reported question. See them below
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By round. Questions marked Expected are written from the company's standards.
Written R1Medium confidence
CodingMedium confidence
SQL (DE-relevant)Low confidence
Nobody reported these exact questions at Zoho. They are the questions a loop for each of its top topics is known to ask, so prepare for them as likely, not as confirmed.
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Ranked by how much of the evidence points at each topic.
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Do the first group before the second.
DSA/logic + aptitude (written rounds)
Do first (3)Build-an-application coding (Python/Java/C/C++)
SQL for data roles
ETL/data modeling for Zoho products
ThenHR/communication
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Why candidates were turned down, as reported.
Weak DSA/logic or aptitude in written rounds
Python is named in 13 of 50 company accounts.Cannot build a working application
Shaky SQL for data roles
SQL is named in 37 of 50 company accounts.08
3 reported, 2 composite. Each opens and closes. Composites are labelled.
Not a data engineering account. Reports for software roles: a written test (aptitude and C), a coding round (data structures, build a working application), a face-to-face technical round and HR. Expect SQL to be added for data roles.
What to take from it Practise building a small working program.
Not a data engineering account. A 2022 report for a software role includes a SQL question: find the employees with the most absences.
What to take from it Practise grouping and ranking in SQL.
Not a data engineering account. Reports for software roles: technical rounds on object-oriented code, Java and C basics, databases, APIs and backend topics, and explaining your projects in detail. Another report asks for the types of SQL joins.
What to take from it Know your basics and your projects.
Composite walkthroughs. Built from the company's documented loop, not from one person's account.
This is a composite, not one person's account. It is built from the loop we have on record for Zoho. Questions reported for this round: 20–30 Qs: general aptitude (~30–50%) + C programming (nested loops, recursion, pointers).
What to take from it Practise these questions before you reach this round.
This is a composite, not one person's account. It is built from the loop we have on record for Zoho. Questions reported for this round: DSA/logic; multi-language (Python/Java/C/C++/SQL); Build a working application for a problem statement.
What to take from it Practise these questions before you reach this round.
Zoho hires mostly via a general SWE process; dedicated DE reports are scarce. Confirm DE scope with your recruiter.
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Their reported questions, one at a time, against a stopwatch.
20–30 Qs: general aptitude (~30–50%) + C programming (nested loops, recursion, pointers)
Out loud, in order: clarify, build it, check it, explain it.
10
Pick your level and the weeks you have.
Built from what Zoho asks, strongest first. For the wider basics at your level, follow the Mid level plan alongside it.
Python and coding
Read: Python chaptersDrill: Python practiceSay it aloud: Python questionsFull plan: Ace the Python round
Behavioral and communication
Read: Behavioral storytellingSay it aloud: Behavioral questions
Rehearse the Zoho loop
Run the question deckThen repeat your weakest topic once more.